Kitchen Sink Installation in Lutwyche
Putting in a kitchen sink is three jobs in one: out with the old bowl, in with the new, and a watertight join at every connection. Kitchen sink installation in Lutwyche is licensed work, and every job is done by a licensed plumber on our team.
If we're late, $100 comes off your bill
- Licensed and InsuredEvery job done by a licensed plumber. QBCC No: 15024607
- Fixed Quote FirstFlat-rate pricing, agreed before any work starts
- Lifetime Labour WarrantyBacked by our Fix-It-or-It's-Free guarantee (T&Cs apply)
- $0 Call-Out FeesNo extra charge for nights, weekends or public holidays

Units make up most of the homes, so our Lutwyche plumbers work as often above the shops as in a cottage near Prentice Park. Everything else in these rooms, from laundry tubs to mixer taps, sits under kitchen and laundry plumbing.

From Old Sink Out to Leak Test
Fitting a kitchen sink comes down to five connections: the mixer, both supply feeds with isolating taps, the trap, the basket waste and the drain line. A leak test closes the job.
Each piece has a job to do:
Isolating taps
a small valve on each supply line shuts water at the sink alone, so the rest of the home keeps running.
Basket waste
the fitting in the bowl's drain hole, sealed from underneath, so water goes down and nothing seeps around it.
Trap
the bend holds a water seal that blocks sewer odours rising back through the waste.
Drain line
the final run from trap to the sanitary point the kitchen feeds.
Where a dishwasher drains through the same waste, its hose usually clips onto a spigot on that fitting, so the replacement waste needs one too. For the machine's own feed and waste, see our dishwasher installation page.

Who May Fit a Kitchen Sink in Queensland
A licensed plumber does this work in Queensland. The QBCC lists fixing or replacing sinks among the regulated jobs, and a sink never appears on its short unregulated list.
What changes is the paperwork:
A brand-new sink, or moving the old one,
is notifiable work: no council permit, and we lodge a Form 4 with the QBCC inside 10 business days of finishing.
A straight swap in the existing hole
counts as minor work: still licensed, no permit, nothing to lodge.
Your copy
you receive a copy of the Form 4, and the QBCC's public registers let you check a licence and whether a Form 4 has been lodged for an address.

Drop-In and Undermount Sinks Compared
A drop-in sink rests on its own rim above the hole, while an undermount fixes below the benchtop and needs a precise, sealed cut-out. The rim of a drop-in covers a rough cut, which suits laminate tops and keeps fitting simple.
An undermount is the reverse. The cut edge stays visible, so the hole needs a clean finish and a silicone seal. Brackets or clips under the rim take the bowl's full weight, so the benchtop matters as much as the sink.

Sink Installation Costs in Lutwyche
What drives the price is whether the bowl stays put, whether a new supply or waste outlet is needed, and the room under the benchtop. The benchtop and the mixer and fittings round it out. The figure arrives as a fixed quote after we've looked over the job, and nothing starts before you approve it.
The unit blocks went up across several decades, so mixed fittings share the risers. A failed isolator can mean a whole-building shutdown while the bowl is swapped, and that shapes the quote before the fittings are even chosen.

Leaks Under the Sink and Around the Tap
Most leaks under a kitchen sink start at one of five joins:
- The trap's union
- The basket waste seal
- The tap base
- A supply connection
- The seal where the bowl meets the benchtop
Water travels along pipes and cupboard floors, so the wet patch often sits a hand-span from where it escapes.
Three signs point to a slow drip before you see one:
- A soft or swollen patch in the cupboard base
- A stale, musty smell that never airs out
- A tide line or water stain tracking along a pipe
Any of those under a kitchen cupboard is worth a check before the shelf underneath swells. The braided feeds that fail most often sit in that same cupboard, and our flexi hose replacement guide steps through them.
How We Run the Job
- 1

Tell us what's happening
Call (07) 3523 7172 or send the form with a few details about the problem in Lutwyche. A clear description helps us bring the right parts.
- 2

We strip the old and set the new
We close the isolating taps, free the old bowl and mixer, then set the new sink in place. The basket waste gets its seal, the trap and both feeds go back on, and the whole lot is ready to test.
- 3

Approve a fixed price
You get a fixed quote before any work starts, with flat-rate pricing and no hidden fees. Nothing goes ahead until you say yes.
- 4

Pay when it's finished
Pay by card or EFTPOS on site once the job's done, or ask about Fix now, pay later.
Plumbing job in Lutwyche?
$0 call-out fees, available 24/7, and same-day where we can.
Kitchen Sink Questions From Our Customers
Call (07) 3523 7172How should a kitchen sink be installed?
A licensed plumber closes the isolating taps, disconnects the old sink, then fits and connects the new one. That covers the tap, the supply lines, the waste fitting in the bowl, the trap and the drain, and we test every join for leaks.
What is a Form 4 for a new kitchen sink?
A Form 4 is the notice a plumber lodges with the QBCC when a job counts as notifiable work, like fitting a new or relocated sink. It goes in within 10 business days of completing the work, and the owner gets a copy.
Is a top-mount or undermount sink easier to fit?
A top-mount is. The rim hides a rough cut, while an undermount sits under the benchtop, so the cut-out has to be exact, sealed with silicone, and held up by brackets or clips.
Why is water leaking under my kitchen sink?
Usually the trap union, the washer under the sink's drain fitting, the mixer's base, a supply nut or the join between bowl and benchtop. A soft cupboard floor, a stale smell or a water stain means a slow drip even when nothing visibly runs. On the property side the pipes are yours; Urban Utilities looks after the street main.
Who arranges a kitchen sink replacement in a rental?
The owner or property manager does, because the tenancy rules keep them responsible for repairs. Urban Utilities covers the street main only, so the sink and its pipes stay the owner's job. A tenant needs written consent on a Form 23 before attaching a fixture, and that consent should not be refused without good reason.
Call Us About the New SinkWe'll call you back.
Ring (07) 3523 7172 and tell us what's wrong. You get $0 call-out fees, a fixed quote before any work starts and same-day where we can, 7 days a week.
To claim your $0 call-out fee, call (07) 3523 7172 today.